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(N0 Model J 3 Sheets-Sheet 1.

N. J, WINLUND.

KNITTING MACHINE.

N0. 47 73. Patented July 12,1892.

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N. J. WINLUND. KNITTING MACHINE.

No. 478,673. Patented July 12, 1892.

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3 sheetssheet 3.

(No Model.)

.N. J. WINLUND.

KNITTING MACHINE.

m m w m ww L mu. wAsu u UNITED STATES PATENT OFFICE.

NICHOLAS J. IVINLUND, OF ROCKFORD, ILLINOIS, ASSIGNOR OF TWO-THIRDS TOEDWARD MCSHERRY AND HENRY WV. PRICE, OF SAME PLACE.

KNITTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 478,673, dated July 12,1892.

Application filed May 18, 1891. Serial No. 393,224. (No model.)

To all whom, it ncay concern:

Be it known that I, NICHOLAS J. WINLUND,

a citizen of the United States, residing at Rockford, in the county ofWinnebago and State of Illinois, have invented certain new and usefulImprovements in Knitting-Ma chines, of which the following is aspecification.

The object of this invention is to construct to a knitting-machineprovided with a needlecylinder, knitting needles, operating cam,subjacks, and a pattern-wheel, located outside of the needle-cylinder,capable of a vertical movement and operating upon the subjacks, to holdthe needles in or out of engagement with the cam.

The further object of this invention is to provide the subjacks with anextension which serves as a guide for the needle in its verticalmovement during the process of knitting.

In the accompanying drawings, Figure 1 is a plan view of aknitting-machineembodying the features of my invention. Fig. 2 is anelevation showing the connection between the pattern-wheel and itscontrolling mechanism. Figs. 3, 4,and 5 are verticalsections ofaportionof the needle-cylinder, cam-cylinder, patternwheel, and the controllingdevice for the pattern wheel, showing the various positions which theneedle, jack, and subjack occupy during the process of knitting.

This invention relates to a class of knittingmachines known as theautomatic knittingmachines, in which the needles are thrown into and outof action by a pattern-wheel during the process of knitting. Theneedlecylinder 1 in this instance is of the usual construction, havingits interior surface-provided with vertical grooves, within which theneedles 2 move. inder extends an annular base 3, having its uppersurface provided with radial grooves4 for the reception of subjacks 5.The needlecylinder is vertically slotted a portion of its length, andthrough these slots extend a projection 6, from a jack 7 which entersthe groove 8 of. a cam-cylinder 9, located within the central opening ofthe needle-cylinder. To the lower end of the needle-operating cam- 5ocylinder is secured a gear-wheel 10, the teeth of which mesh withtheteeth of a gear-wheel From the lower end of the cyl- 11, to which arotary or oscillatory movement is imparted from a prime mover.

Surrounding the needle-cylinder near its upper end is located a needleholding and releasing ring 12, which is provided with slots, so thatwhen the ring is oscillated the slots will coincide with theneedle-grooves of the cylinder and permit the removal of aneedle, andwhen oscillated the proper distance the grooves will coincide with thespaces between the grooves of the needle-cylinder, thereby holding theneedles in their working position. This needle holding and releasingring and the cam-cylinder form the subject-matter of Letters Patentgranted to me April 28, 1891, Nos. 451,285 and 451,286, and aretherefore not claimed in this specification.

The j lGkS 7 are located in the needlegrooves of the needle-cylinder andhave a hook connection with the lower end of the needle, by reason ofwhich the needle is moved vertically as thecam-cylinder 9 rotates or OS-cillates by reason of the projection 6 of the jack entering thecam-groove. The lower end of the jack is provided'with an extension 13,which, when the jack is in the position shown at Figs. 3 and 5, enters anotch 14, formed in the upturned end 15 of the sub jack 5. The subjacksare located in the ra- 8o dial grooves 4 ot' the annular base 3 and.moved toward and from the center of the needle-cylinder. When thesubjack is in its innermost position, it will occupy the position shownat Figs. 1, 3, and i, and the upward extension 16 of the subjack holdsthe .jack in its engagement with the operating-cam groove of thecam-cylinder during the process of knitting. WVhen the subjack iswithdrawn, the jack will be in its lowest position and its 0 extension13 will enter the notch 14 of the subjack, and by reason of thisengagement the lower end of the jack will be moved outward and theprojection 6 of the jack will be disengaged from the cam-grooveot' thecam-cylinder 5 9, thereby holding the jack, and consequently the needle,out of Working-position. A disk 17 is located over the annular base andholds the subjacks in their grooves, but in such a manner as to permitof their radial sliding 103 movement. A pattern-wheel 18, in thisinstance of segmental form, is located outside of the annular baseextending from the needle-cylinder. This pattern-wheel is provided witha series of ribs 19, which radiate from the centerof theneedle-cylinder. In one face of each of these ribs is formed twovertical grooves 20, joined together by a diagonal groove 21, whichforms an irregular pathway.

This pattern-wheel is so located that the outer end of the subjacks willlie in line with that face of the rib which is provided with theirregular groove, and a pin or stud 22, projecting from the end of eachsubjack, enters the groove of one of the ribs. This pattern-wheel issupported in such a manner as to be ca pable of a vertical bodilymovement, and is held thus supported in this instance by three brackets23, havinga connection with the annular base and having their free endsupturned, which pass through vertical guideways 24 in the outercircumference of the pattern-Wheel. It will be seen that as thispattern-wheel is moved vertically the pin of the subjack will travel theirregular groove formed in the face of the ribs of the patternwheel, andthis irregular groove is of such form as'to force the subjacks radiallyinward when the pattern-wheel is moved upward, and when thepattern-wheel is moved downward the subjacks will be moved outward.

This movement of the subjacks will, by reason of their engagement withthe jacks, cause the jacks to become inoperative or to be held inengagement with their operating-cam. In this instance I have providedeach of the ribs with the same form of groove, which will move all of Ithe subjacks having a connection therewith simultaneously inward oroutward, thereby throwing into or withdrawing from action all of thejacks having a connection with the subjacks, which are operated by thepattern- Wheel, and in this instance all needles except thefashioning-needles. It is necessary that this vertical movement of thepattern-wheel should be accomplished automatically, and for that purposeI have located a wheel 25 below the pattern-wheel to move in a verticalplane. The face of this wheel 25 is provided with an irregular groove orpathway 26, which receives a horizontal stud 27, projecting from avertical arm 28, which has connection by means of a brace 29 with thepattern-wheel. The periphery of the wheel 25 is in notched or ratchetedform, and a dog 30, having a pivotal connection with the mainsupportingframe, carries a spring-actuated pawl 31,which engages theteeth of the wheel 25. This dog is operated by the movement of arotating cam-wheel 32. As this cam-wheel is rotated it moves the dog onits pivot, which causes the pawl to engage the teeth of the wheel 20,imparting thereto an intermitting rotary movement, which is repeated ateach revolution of the cam-wheel. When this wheel 25 is rotated asufficient distance, the stud 27 will descend from the pathway havingthe greatest diameter to the pathway having the least diameter, whichwill cause a vertlcal movement to be imparted to the pattern-Wheel, andthis vertical movement is repeated when the stud changes from one pathto the other. It will be seen that by this construction of theknitting-machine all of the needles are under positive control eitherwhile they are in engagement with their cam-cylinders or disengagedtherefrom.

I claim as my invention- 1. In a knitting-machine, the combination of aneedle-cylinder, knitting-needles, jacks, subjacks, and an operating-cam, the sub acks being provided with an extension which forms aguide for the jacks and holds them in engagement with the cam during theprocess of knitting.

2. In a knitting-machine, the combination of a needle-cylinder,knitting-needles, an operating-cam, subjacks, and a pattern-wheellocated outside of the needle-cylinder and capable of a verticalmovement and operating upon the subjacks to hold the needles in or outof engagement with the cam.

3. In a knitting-machine, the combination of a needle-cylinder, a seriesof knitting-needles, a series of subjacks, and a pattern-wheel locatedoutside of the needle-cylinder and capable of a vertical movement, andmeans for moving the pattern-wheel, each of the subjacks having anindependent connection with the pattern-wheel.

4. In a knittinganachine, the combination of a needle-cylinder, needleslocated therein, an annular base extending from the cylinder, said basebeing provided with radial grooves, subjacks located in said grooves,and a top plate holding the subjacks in position.

NICHOLAS J. WINLUND.

Witnesses:

A.-O. BEHEL, E. BEHEL.

